Home / 985,601.20-1,478,110.20-386,217.40

Finding the Fourth Proportional to 985,601.20, 1,478,110.20 and 386,217.40

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Solution

The fourth proportional to 985,601.20, 1,478,110.20 and 386,217.40 is: 579,211.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,601.20 : 1,478,110.20 = 386,217.40 : x
  2. Step 2: Convert to fraction form
    985,601.20/1,478,110.20 = 386,217.40/x
  3. Step 3: Cross multiply
    985,601.20x = 1,478,110.20 × 386,217.40
  4. Step 4: Simplify right side
    985,601.20x = 570,871,878,357.48
  5. Step 5: Solve for x
    x = 570,871,878,357.48/985,601.20
  6. Step 6: Final answer
    x = 579,211.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.